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Service bulletin SB-21321

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10034530
Published by NHTSA2010-11-29
Manufacturer's numberSB-21321
Manufacturer's date2010-05-01
NHTSA componentSTEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

FORD/MERCURY: CLUNK NOISE AT STEERING; STOPS DURING FIRST LOCK TO LOCK CYCLE. THE NOISE TYPICALLY OCCURS DURING TIGHT PARKING LOT MANEUVERS. THE CLUNK NOISE HEARD ON THE FIRST STEERING LOCK TO LOCK CYCLE IS A NORMAL CHARACTERISTIC OF THE SYSTEM. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Steering, Power steering

Vehicles listed
FORD ESCAPE2009, 2010
MERCURY MARINER2009, 2010

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
14V2840002014-05-29. STEERING:ELECTRIC POWER ASSIST SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB-14-00162014-03-12. Service bulletin. FORD/MERCURY: IF DIAGNOSTIC CODE B2278 IS STORED IN POWER STEERING CONTROL MODULE (PSCM), IT NEEDS REPLACING WITH TORQUE SENSOR SERVICE KIT THAT IS AVAILABLE AND IF NOT, DOES NOT APPLY. MODEL 2008-2012 ESCAPE, 2008-2011 MARINER. *PE